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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX
      21             : #define _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX
      22             : 
      23             : #include <com/sun/star/uno/Reference.hxx>
      24             : #include <com/sun/star/awt/XWindow.hpp>
      25             : #include <vcl/window.hxx>
      26             : 
      27             : #include "outdevprovider.hxx"
      28             : 
      29             : #include <boost/utility.hpp>
      30             : 
      31             : namespace vclcanvas
      32             : {
      33           0 :     class WindowOutDevHolder : public OutDevProvider,
      34             :                                private ::boost::noncopyable
      35             :     {
      36             :     public:
      37             :         explicit WindowOutDevHolder( const ::com::sun::star::uno::Reference<
      38             :                                            ::com::sun::star::awt::XWindow>& xWin );
      39             : 
      40             :     private:
      41           0 :         virtual OutputDevice&       getOutDev() { return mrOutputWindow; }
      42           0 :         virtual const OutputDevice& getOutDev() const { return mrOutputWindow; }
      43             : 
      44             :         // TODO(Q2): Lifetime issue. Though WindowGraphicDeviceBase
      45             :         // now listenes to the window component, I still consider
      46             :         // holding a naked reference unsafe here (especially as we
      47             :         // pass it around via getOutDev). This _only_ works reliably,
      48             :         // if disposing the SpriteCanvas correctly disposes all
      49             :         // entities which hold this pointer.
      50             :         // So: as soon as the protocol inside
      51             :         // vcl/source/window/window.cxx is broken, that disposes the
      52             :         // canvas during window deletion, we're riding a dead horse
      53             :         // here
      54             :         Window& mrOutputWindow;
      55             :     };
      56             : }
      57             : 
      58             : #endif /* _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX */
      59             : 
      60             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */